Apparatus for shaping metal parts in dental work.



PATENTED AUG. 2, 1904.

D. N. BOOTH.

APPARATUS FOR SHAPING METAL PARTS IN DENTAL WORK.

APPLIOATION FILED FEB. 5,1904.

N0 MODEL.

M n u m M1 5/ M. m n a m I Patented August 2, 1904.

PATENT OEEIcE.

DAVID N. BOOTH, OF NEIV YORK, N. Y.

APPARATUS FOR SHAPING METAL PARTS IN DENTAL WORK.

SPECIFICATION forming part of Letters Patent No. 766,586, dated August2, 1904.

Application filed February 5,1904. Serial No. 192,097. (No model.)

To (all whom it may concern.-

Be it known that I, DAVID N. BOOTH, a citizen of the United States,residing in the borough of Manhattan, in the city, county, and State ofNew York, have invented an Improvement in Apparatus for Shaping MetalParts in Dental W'ork, of which the following is a specification.

My invention relates to apparatus for shaping metal parts in dentalwork, and particularly to apparatus for shaping the metal gibs employedfor various classes of artificial teeth and the grooved metal backingsinto which the same are fitted and secured.

In carrying out my invention I employ a double frame, means for clampingboth parts of the frame together, slidably-adjustable members havingcorrespondingly-beveled sides arranged in both parts of said frame, andmeans for clamping and holding said adjustable members in any desiredpositions within the said frame parts, all of which, together with theuse of the apparatus, will be hereinafter more fully described.

In the drawings, Figure 1 is plan of the under frame and the partsconnected therewith. Fig. 2 is a cross-section on the line .r n' of Fig.1; and Fig. 3 is a cross-section on the line 3/ y, Fig. 1. Fig. A is aplan of the frame parts combined. Fig. 5 is a cross-section on the line.2 .2, Fig. A. Fig. 6 is a side elevation of Fig. 1. Figs. 7 and 9 arerear elevations of artificial teeth, and Fig. 8 is a side elevation ofthe tooth represented in Fig. 7. Fig. 10 is a rear elevation of anartificial tooth, showing the gib attached thereto; and Fig. 11 is across-section of the same. Fig. 12 is a view similar to Fig. 11, showingthe tooth and its gib secured in the backing. Fig. 13 is a section ofthe position which the adjustable members of the apparatus are made toassume in the first step in the shaping of the gib. Fig. 14 shows thesame parts with the gib cut from the metal from which the same is made.Fig. 15 is a section of these parts, showing the first step in formingthe backing; and Fig. 16 is a similar view, showing the backing bentinto shape.

As hereinbefore stated, my invention comprises a double or two-partframe, the under member of which is composed of sides a and ends 7),connected in any suitable manner and preferably rectangular in outline.

2, 3, A, 5, and 6 represent slidably-adjustable members whose ends arerecessed so as to fit and be received in the beveled portion of thesides a, so that the ends of the adjustable members extend over theupper surface of the sides a. The adjustable members 3 and 4. haveoppositely-inclined sides and the adjustable members 2 and 5 are soshaped that the sides adjacent to the members 3 and 4, respectively, areparallel to the inclined sides of the said members 3 and 4. Theadjustable member 6 is preferably integral, having its sides oppositelyinclined. This member together with the members 3 and 4: are providedwith vertical apertures 0, arranged in pairs. The adjustable members 3and 4 are provided at their extremities with brackets 7 and 8,respectively, and adjusting-screws c are pivotally connected in thebrackets 7 and adapted to pass through and engage the brackets 8, sothat the said members 3 and 4 may be brought together or moved apart andthe relation between the same adjusted to any desired position.

9, 10, and 11 represent blocks which are placed between the ends of theadjustable members 2 3, 4: 5, and 2 6 to maintain these parts in a givenrelation in which the same may have been placed, and 12 represents ablock which is placed between the adjustable member 5 and one end of theframe 7).

(Z is a clamp-screw passing through the opposite end of the frame andadapted to bear against the adjustable member 6 in order to clamp allthe parts within the frame in a desired fixed relation, and the endmembers 6 of the frame are provided with uprights or posts 13, the endsof which are provided with screwthreads and which function will behereinafter set forth.

The upper member of the frame is similar in construction to the lowermember a 6, representing, respectively, the sides and ends of the same,and 14 15, 16 17, 18 slidably-adjustable members corresponding tosimilar members 2 3, 1- 5, and 6 in the lower frame, the members 15 16and 18 being provided with apertures in similar positions tocorresponding apertures e in the similar members in the lower frame. Ablock 19 is .employed in connection with the upper frame similar to theblock 12 hereinbefore referred to, and the blocks which are employedbetween the adjustable members 14, 15, 16,'and 17 and 14: 18 arerepresented at 20, 21, and 22. The members 16 are also provided withbrackets 23 and 2 1 and adjustings'crews 0', corresponding,respectively, with the brackets 7 8 and adjusting-screws cof the underpart of the frame. The ends of the upper frame part are provided wi thholes through which when the upper frame part is superimposed upon thelower the posts 13 pass, and I also employ nuts 25, adapted to fit thepost 13, by which means the said frame parts may be securely fastenedtogether. The sides and ends of both parts of the frame may be connectedin any suitable manner, but are preferably connected by means of pins26, so that the frames may be readily taken apart in order tointerchange the adjustable members 3 4 for the member 6, or vice versa,and the members 15 16 for the member 18.

-Referring to Figs. 7, 8, and 9, artificial teeth f are manufacturedwith pins 27, which are secured in the teeth and extend appreciablybeyond the rear surface of the same. These pins, as shown, may be placedeither ina horizontal or a vertical line. To these pins 27 thedovetailed gib h is secured, as shown in Figs. 10 and 11, and by meansof the gib it the tooth is secured in the grooved backing d, as shown inFig. 12: The object of the apparatus, as hereinbefore described, is toso shape the gib and the backing for any particular tooth that the onewill fit the other perfectly.

The apparatus is used as follows, presuming a gib and backing are to beshaped for any given tooth: The tooth is placed upon the adjustablemembers 3 and 4 of the under frame and the said members adjusted so thatthe pins 27 fit within a pair of openings 6, after which the tooth isremoved-and the adjustable members 2 and 5 set in position with thedesired space between the same and the members3 4, and the parts arethen ready to be clamped within the frame by the screw cl. The upperframe member is now superimposed upon the under, and the adjustablemembers 15 16 are placed above the members 3 4c and adjusted to such aposition that the apertures e therein correspond with the apertures e inthe members 3 4:, after which the members 14 17 are placed in a positioncorresponding to the members 2 5, respectively, in the under frame,whereupon the members in the upper frame are rigidly fixed in positionby the clamp-screw b. The strip of metal h or other material from whichthe gib is to be shaped is now placed longitudinally of the apparatusand centrally of the apertures in which the pins of the tooth werefitted and the upper frame member clamped to the lower member by thenuts 25. Holes to receive the pins of the tooth are now made in themetal h by a suitable punch or drill or in any other desired manner, andby employinga punch or a saw and passing the point of the tool betweenthe members 1 1 15 and 16 17 a portion of the metal it may be cut awayto form the gib h, as shown in Figs. 13 and '14:. As illustrated inFigs. 15 and 16, the metal d, from which the backing is to be shaped,may now be placed between the adjustable members and the frame parts andabove the gib h and by a suitable tool bent down to position, as shownin Fig. 16, so thatthe groove formed in the backing is made directlyover the gib which it is to receive and necessarily makes a perfect fitbetween these parts.

It will be readily apparent that when the pins 27 are arranged in a linelongitudinally of the tooth, as shown in Fig. 9, it will be necessary tosubstitute the adjustable members 1. In an apparatus for shaping metalparts in dental work, the combination with a double frame, ofslidably-adjustable and corresponding members having inclined sides inthe said double frame, means for maintaining said members in any desiredpositions within the frame parts, means for clamping said members in thesaid positions, and means for securing the said frame parts together.

2. In an apparatus for shaping metal parts in dental work, thecombination with the twopart frame, of slidably-adjustable andcorresponding members having inclined sides and arranged in both partsof said frame, means for maintaining said members in any desiredposition within the frame parts, means for clamping said members in thesaid positions, and means for securing the said frame parts together.

3. In an apparatus for shaping metal parts in dental work, thecombination with a twopart frame, of slidablyadjustable andcorresponding members having inclined sides arranged in both parts ofsaid frame, there being apertures in pairs in one or more of saidadjustable members, means for maintaining the said adjustable members inany desired positions within the frame parts, means for clamping saidmembers in said positions, and means for securing said frame partstogether.

4. In an apparatus for shaping metal parts in dental work, thecombination with a two part frame, of two slidably-adjustable membershaving oppositely-inclined sides and ap-- ertures in pairs thereinarranged in both parts of said frame, means for adjusting the relativepositions of said members, other slidablyadjustable members arranged inboth parts of said frame on either side of the aforesaid members andhaving faces inclined and respectively parallel to the adjacent faces ofthe said aforesaid members.

5. In an apparatus for shaping metal parts in dental work, thecombination with a twopart frame, of two slidably-adjustable members 11aing oppositely-inclined sides and apertures in pairs therein arranged inboth parts of said frame, means for adjusting the relative positions ofsaid members, other slidablyadj ustablc members arranged in both partsof said frame on either side of the aforesaid members and having facesinclined and respectively parallel to the adjacent faces of the saidaforesaid members, blocks for maintaining the said members in anydesired position within the frame parts, means for clamping said membersin said position, and means for securing said frame parts together.

6. In an apparatus for shaping metal parts in dental work, thecombination with a twoa part frame, of two slidably-adjustable membershaving oppositely-inclined sides and apertures in pairs therein arrangedin both parts of said frame, means for adjusting the relative positionsof said members, other slidablyadjustable members arranged in both partsof said frame on either side of the aforesaid members and having facesinclined and respectively parallel to the adjacent faces of the saidaforesaid members, blocks for maintaining the said members in anydesired position within the frame parts, a screw in each of said frameparts for clamping the adjustable members therein in a given position,and means for securing said frame parts together.

Signed by me this 22d day of January, 1904.

D. N. BOOTH.

WVitnesses:

GEO. PINCKNEY, S. T. HAVILAND.

